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Thread: Patient wishes for short corridor lens with 21mm seg height.

  1. #1
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    Patient wishes for short corridor lens with 21mm seg height.

    Anyone see a problem with this scenario? She's 49, OD: -2.00 -0.50 078 OS: -1.50 -0.75 088 Add 2.50...first time progressive wearer, Comfort 2 Enhanced CR-39. She's wanting a short corridor lens she has a 21mm fitting height. She doesn't want much in the way of the intermediate range, as much distance and near as she can.

    Issues with using a short corridor where a standard corridor could be used?

    -Chris

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    Quote Originally Posted by ChrisinNH View Post
    as much distance and near as she can.
    I don't think this will affect her distance at all, right?

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    My Opinion.....this will grant the person's wishes as long as the brand of short corridor supplied does not intrude into the peripheral distance, and/or create a very swimmy peripheral distortion zone. A narrower reading zone is a given.
    Eyes wide open

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    Master OptiBoarder AngeHamm's Avatar
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    If she's educated about the product enough to make such a specific and unusual request, I think you can assume she knows what she'll be getting.

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    Compulsive Truthteller OptiBoard Gold Supporter Uncle Fester's Avatar
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    Red Alert!

    +2.50 add at 49 years old?

    Sounds a little strong.

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    Correction...she's 53, not 49. But still, yes, that does seem a bit much still.

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    Compulsive Truthteller OptiBoard Gold Supporter Uncle Fester's Avatar
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    Probably not if she's happy with reading without glasses.

    My biggest concern would be 1st time progressive after years and years of full field near without glasses.

    Field of view limitations should be emphasized.

    How about Physio Enhanced Fit?

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    Quote Originally Posted by ChrisinNH View Post
    as much distance and near as she can.
    Round 24 segmented, Auto fixed 11mm.

    Issues with using a short corridor where a standard corridor could be used?

    -Chris
    Significantly increased dynamics and increased off and on-axis distance blur.
    Science is a way of trying not to fool yourself. - Richard P. Feynman

    Experience is the hardest teacher. She gives the test before the lesson.



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    OptiWizard
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    I second Robert. Use Auto 2 and fit a millimeter or two low. Use this quite often actually. Seiko and new Zeiss also are good lenses with fixed lengths.

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    Compulsive Truthteller OptiBoard Gold Supporter Uncle Fester's Avatar
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    I'm not so sure she really needs a very short corridor.

    The big benefit is going to come from the intermediate as I would speculate any lengthy reading time will be spent with the glasses off.

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    Quote Originally Posted by Uncle Fester View Post
    I'm not so sure she really needs a very short corridor.

    The big benefit is going to come from the intermediate as I would speculate any lengthy reading time will be spent with the glasses off.
    You'd think. But the OP and client specifically asked for best near/far. I suspect the client wants to read and watch TV, or some other multitasking scenario. Am I reading this right Chris?
    Science is a way of trying not to fool yourself. - Richard P. Feynman

    Experience is the hardest teacher. She gives the test before the lesson.



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    Compulsive Truthteller OptiBoard Gold Supporter Uncle Fester's Avatar
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    My experience is that the Physio enhanced fit is wider in the near and would be only a few mm lower (min. fit hgt 14). Yes Robert I'll concede Essilor fudges the "full" near power but if I wasn't stuck with having to deal with an Essilor lab I'd also consider a Seiko WS for budget, Superceed WS for better, and Surmount for best.

    As a lifetime sv wearer she may find "sticker shock" at top of the line lenses.

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    Compulsive Truthteller OptiBoard Gold Supporter Uncle Fester's Avatar
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    Quote Originally Posted by Robert Martellaro View Post
    I suspect the client wants to read and watch TV, or some other multitasking scenario.
    Then sv narrow B semi-rimless/full rimless and look under to read.

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    Quote Originally Posted by Uncle Fester View Post
    Then sv narrow B semi-rimless/full rimless and look under to read.
    I still have one Franel Top Half in stock.
    Attached Thumbnails Attached Thumbnails top half.jpg  
    Science is a way of trying not to fool yourself. - Richard P. Feynman

    Experience is the hardest teacher. She gives the test before the lesson.



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    I often fit short corridor lenses at 19 or 20, I think 21 would be fine.

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    She does wish to multi-task with her glasses on such as reading/tv.

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    I often fit shorter corridors on my patients if they have a lack of mobility, ask questions find out why and give her what she wants if it makes since. I would question use of a Comfort 2 Enhanced for a first time progressive wearer.

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    Are you sitting down?

    Quote Originally Posted by ChrisinNH View Post
    Anyone see a problem with this scenario? She's 49, OD: -2.00 -0.50 078 OS: -1.50 -0.75 088 Add 2.50...first time progressive wearer, Comfort 2 Enhanced CR-39. She's wanting a short corridor lens she has a 21mm fitting height. She doesn't want much in the way of the intermediate range, as much distance and near as she can.

    Issues with using a short corridor where a standard corridor could be used?

    -Chris
    The vertical component of her Px is minus 2.25 roughly. She belongs in a moderately short PAL or the reading section will be in the basement. Find a PAL with an advertized MFH of 16 or as short as 14, and put it at 21. Also, her add says she is 60 years old. A Precise Short or Physio Short would do OK. It may take some time for this 60 year old to adjust. She has gotten way too comfortable with that Comfort even though it is too long a lens for her Px.
    jonadonis

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    Quote Originally Posted by ChrisinNH View Post
    She does wish to multi-task with her glasses on such as reading/tv.
    A lot of unknowns so this becomes more art than science in a hurry, so sit down with the client and get a good feel for what will be best, considering individual sensitivities and convenience (multiple pairs), and don't forget to sort that add power before you proceed. Good luck.
    Last edited by Robert Martellaro; 07-24-2013 at 05:30 PM.
    Science is a way of trying not to fool yourself. - Richard P. Feynman

    Experience is the hardest teacher. She gives the test before the lesson.



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